2020 Ornithology (B/C) - Training Handout KAREN L. LANCOUR National Bio Rules Committee Chairman – Life Science DISCLAIMER - This presentation was prepared using draft rules. There may be some changes in the final copy of the rules. The rules which will be in your Coaches Manual and Student Manuals will be the official rules. BE SURE TO CHECK THE 2020 EVENT RULES for EVENT PARAMETERS and TOPICS FOR EACH COMPETITION LEVEL THE NATIONAL BIRD LIST may be found at www.soinc.org under Event Information. States may modify the list for State and Regional Tournaments. See your state website. TRAINING MATERIALS: Training Power Point presents an overview of material in the training handout Training Handout presents introductory topic content information for the event Sample Tournament has sample problems with key Event Supervisor Guide has event preparation tips, setup needs and scoring tips Internet Resource & Training Materials are available on the Science Olympiad website at www.soinc.org under Event Information. A Biology-Earth Science CD, a Taxonomy CD and the Division B and Division C Test Packets are available from SO store at www.soinc.org THE COMPETITION: Content: Taxonomic Scheme of the 2020 Official Science Olympiad Bird List is used in competition Identification, anatomy & physiology, reproduction, habitat characteristics, ecology, diet, behavior, ID calls, conservation, biogeography Process Skills: observation, inferences, data and diagram analysis The Science Olympiad National Bird List will be used for taxonomy questions. States may have a modified Stated Bird for Regional & State competitions which must be posted on their state website by Nov. 1 Kingdom - Animalia Phylum - Chordata Subphylum - Vertebrata Class - Aves Past taxonomy has been based on morphology, behavior, habitat, nest characteristics, etc., but most recently DNA hybridization techniques have been used with probably the most accurate results of any method. There are about 10,000 species of birds in about 170 families with 1 to 300 birds per family. When one looks at modern forms of birds only, birds form a homogeneous and distinct group, compared to the other vertebrate classes. 1 CLASS AVES: Waterproof skin covered in feathers Endothermic, warm blooded Hard shelled eggs that are waterproof Beak or bill rather than teeth Bipedal (walk on two legs only) Forelimbs developed into wings Most members are highly adapted for flight with forelimbs modified as wings and many weight saving features such as hollow bones. 2 ORDERS AND FAMILIES OF BIRDS: The bird lists are arranged by Orders and Families within the Order. The specie and common names are given for each bird within the Family. Learn the Order and Family characteristics and then species!! General tips on arrangement are: (Expect some exceptions of course.) The characteristics of an order are for a large group of birds The characteristics of the families within an order distinguish groups within an order The families reflect how birds have evolved and have many distinctive features and behaviors. The characteristics of a genus distinguish groups of birds within an family Ocean, shore, game and predatory birds appear first, they are generally large birds. Next are hole-nesting birds without true songs, they are smaller. Last come the song birds which are still smaller. Generally the feeding habits go from eating fish and small mammals to eating seeds and insects. Special modifications in morphology allow birds to succeed in their environment. These are very helpful in identifying families, species, and their unique behaviors. 3 GENERAL MORPHOLOGY: The outline or silhouette of the bird in flight or at rest can identify many families of birds. HEAD: Many have distinctive stripes or colored patches on their head. * Crown = tip of the head and Cap = a distinctively colored crown as black-capped chickadees. * Crest = a projection or tuft on the head often brightly colored as cardinals. * Lores = space between eye and bill and spectacles = distinctive eye rings or eye stripe. * Size of eye – large eyes are hints that the bird is nocturnal or feeds at night. * Color of eye – they may be red, yellow, brown, black, etc. * Ear tufts = projections near ear region as horned owls (birds do not have visible ears). Auricle region = feathers covering the opening of the ears. * Chin = the area around the bill * Throat = the area between the bill and the breast. It may be highly brightly colored as the ruby throated humming birds. 4 BILL: The two parts are the upper and lower mandibles. Often mistakenly called a beak. Beak = the hooked bill of a hawk or parrot. Since birds have their forelimbs modified as wings, their beaks become very useful tools. The bill is modified for eating a specific type of food. Some common modifications are: Shape of Bill (diagrams) Function A. probing flowers for nectar B. drilling into trees for insects C. scooping fish D. catching fish E. straining food from the water F. capturing prey and tearing flesh G. cracking seeds H. capturing worms and insects I. opening seeds from pine cones 5 NECK: Most birds have short necks but some such as the crane are long. BODY: Some birds are stout while others are slender bodied. * Back = upper surface and rump = area closest to the tail. * Breast (chest) = underside near head and belly = underside around legs. * Sides = belly under wings. * Many birds have distinctive plumage patterns but remember that stripes are head to head or lengthwise while bars are wing to wing or crosswise. PLUMAGE: The color pattern of the feathers along the body varies. It is often unique for a species. Feathers are epidermal structures derived from reptile scales Feathers tend to grow in dense tracts with bare areas between While growing the feather has a blood supply but is sealed off when fully grown Feathers can be moved individually by muscles in the skin (arrector pili) It is usually brighter in males than females with young of both sexes resembling the female. It is usually brightest during the mating season (spring and summer for most birds). Feathers help birds stay dry and warm, attract mates and fly Preening is the act of grooming and maintaining their feathers Preening spreads oil over the feathers which makes them waterproof Molting is the process of shedding old feathers and growing new ones Most birds mold once a year 6 WINGS: Wings are used for true flight as well as gliding, balance during hovering and perching, and during courtship. Many have distinctive white or colored patches. * Wings can be long or short, pointed or rounded. * Shoulder = part of wing nearest to the body. There are two sets of flight feathers. * Primaries = from bend outward to tip and secondaries = from bend toward shoulder. TAIL: The tail is used for steering and breaking during flight. It can also be used in courting displays. * The shape and color pattern is useful in identification. * The tail can be long or short and its shape can be square, rounded, pointed, elongated, forked or notched. 7 LEGS: The length and thickness of the legs as well as the shape of the foot are clues to the way the bird lives. The feet of birds are nearly devoid of muscles for greater agility and greater resistance to freezing damage since they are mostly bone, tendons & tough skin Some birds extend their legs during flight while others hold them under their body. The feet are modified for perching, clinging, walking or swimming. Some common modifications are: Foot Shape (diagrams) Function A. perching B. wading C. climbing or clinging D. swimming E. preying ADAPTATIONS FOR FLIGHT: Entire anatomy is designed around flight Small compact body, reduced weight with all heavy organs close to center of gravity Center of gravity and propulsion systems are properly balanced Body is light yet strong enough for flight The skeletal system is exceptionally light and delicate yet sturdy Many bones are fused together to make the light but strong Strong flight muscles to move wings that can make up to 50% of body weight Active metabolism which provides energy for muscles and large lung capacity The eyes are perhaps the most important sense organ – they are disproportionately larger than in other vertebrates. Birds of prey have very large eyes Hearing is also well developed and includes a wide range of sounds 8 BIRD ANATOMY Brain: Birds are in fact extremely intelligent creatures, and as any bird owner knows, they never fail to surprise us with their capacity for learning. Spinal Column: Like all vertebrates, birds have a spinal column that runs the length of their bodies, and encases the delicate spinal cord. The spinal cord is part of the central nervous system and, in essence, acts as the brain's "messenger". When the bird decides that he wants to move, the spinal cord relays the message from the brain to the muscles that correspond to the desired body part, causing movement. Trachea: The trachea is a long tube that runs from the bird's throat to its lungs, and transports fresh air for the bird to breathe. Esophagus: The bird's esophagus is a narrow tube that transports food from the mouth to the crop, where it will be stored until it is digested. Lung: Much like human lungs, avian lungs serve to diffuse air throughout the bird's bloodstream. They are unique, however, in the fact that they have small air sacs that allow air to flow through the lung in only one direction, ensuring a constant supply of fresh oxygen. Crop: In the same way that a chipmunk stores food in its cheeks, birds store food in their crops. The crop is composed of layers of muscle tissue and holds and softens the food until it's ready to be passed on to the gizzard.